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  <h1 class="topictitle1">周期性执行备份</h1>
  <div>
   <p>将需要保护的项目或云服务器关联到指定SLA，系统将按照SLA的定义周期性执行备份。</p>
   <div class="section">
    <h4 class="sectiontitle">注意事项</h4>
    <ul>
     <li>云服务器状态处于以下状态时支持备份：运行中、关机、挂起。</li>
     <li>由于代理主机最多允许挂载24块磁盘，因此在做备份恢复时，如果代理主机已挂载了24块磁盘，系统将等待有空闲槽位时再执行备份任务。</li>
    </ul>
   </div>
   <div class="section">
    <h4 class="sectiontitle">周期性备份项目</h4>
    <ol>
     <li><span>选择<span class="uicontrol" id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839143069_zh-cn_topic_0000001839142377_uicontrol43503413412">“<span id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839143069_zh-cn_topic_0000001839142377_text1135133411415">保护</span> &gt; 云平台 &gt; OpenStack”</span>。</span></li>
     <li><span>选择“项目”页签，选择需要保护的项目。</span></li>
     <li><span>单击<span class="uicontrol">“<span>保护</span>”</span>。</span><p></p><p>系统将备份该项目下的所有云服务器。</p> <p></p></li>
     <li id="ZH-CN_TOPIC_0000001839223057__li343674154015"><span>选择系统预置或用户自行创建的SLA。</span><p></p><p id="ZH-CN_TOPIC_0000001839223057__p33248794210">您也可以单击<span class="uicontrol" id="ZH-CN_TOPIC_0000001839223057__uicontrol744210206420">“<span id="ZH-CN_TOPIC_0000001839223057__text1873812341015">创建</span>”</span>，创建新的SLA。</p> <p></p></li>
     <li id="ZH-CN_TOPIC_0000001839223057__li1316316472413"><span>选择代理主机。</span><p></p><p id="ZH-CN_TOPIC_0000001839223057__p13689185885118">当用户未选择时，系统会从注册资源时配置的代理主机中选择1到多个代理主机执行备份。</p> <p></p></li>
     <li><span>设置以下参数。</span><p></p>
      <ol type="a">
       <li>选择是否覆盖云服务器已有的SLA。
        <div class="p">
         默认为“不覆盖云服务器已有的SLA”。
         <div class="note">
          <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
          <div class="notebody">
           <p>后续修改项目关联的SLA时，修改时选择<span class="uicontrol" style="color:#282B33;">“<span>不覆盖云服务器已有的SLA</span>”</span>，如果云服务器的SLA与项目本身的SLA一致，则云服务器的SLA会被覆盖。</p>
          </div>
         </div>
        </div></li>
       <li>选择SLA应用策略，支持同时选择以下一个或多个选项：
        <ul>
         <li>将项目/资源集SLA应用到所有未关联SLA的云服务器上。</li>
         <li>将项目/资源集SLA应用到新创建的云服务器上。</li>
        </ul></li>
       <li>指定保护计划中要过滤的云服务器的过滤方式。可选择<span class="uicontrol">“<span>先包含再排除</span>”</span>、<span class="uicontrol">“<span>仅包含</span>”</span>或<span class="uicontrol">“<span>仅排除</span>”</span>进行对应的方式过滤添加保护的云服务器。<p>您可以通过云服务器名称或名称的关键词指定排除或包含部分云服务器，多个云服务器可用英文逗号隔开。</p> <p>支持精确匹配和模糊匹配云服务器名称，模糊匹配规则包括：前缀匹配（如abc*）、后缀匹配（如*abc）、中间匹配（如*abc*）。</p></li>
      </ol> <p></p></li>
     <li><span>单击<span class="uicontrol" id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001607841256_uicontrol471113581111">“确定”</span>。</span><p></p><p id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001607841256_p25041111535">如果当前系统时间已晚于该SLA首次备份的开始时间，则关联备份SLA后可以选择在当前立即执行备份或者根据SLA中设置的备份策略等待下次调度。</p> <p></p></li>
    </ol>
   </div>
   <div class="section">
    <h4 class="sectiontitle">周期性备份云服务器</h4>
    <ol>
     <li><span>选择<span class="uicontrol" id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839143069_zh-cn_topic_0000001839142377_uicontrol43503413412_1">“<span id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839143069_zh-cn_topic_0000001839142377_text1135133411415_1">保护</span> &gt; 云平台 &gt; OpenStack”</span>。</span></li>
     <li><span>选择“云服务器”页签，选择需要保护的云服务器。</span></li>
     <li><span>单击<span class="uicontrol">“<span>保护</span>”</span>。</span></li>
     <li><span>选择是否自动保护磁盘。</span><p></p><p>系统默认开启“自动保护磁盘”，备份云服务器下的所有磁盘。您可以关闭“自动保护磁盘”，单击“<span>请选择</span>”手动选择部分云磁盘备份。</p> <p>系统默认开启自动保护磁盘，开启后将保护云服务器下的所有磁盘，包含新发现的磁盘。关闭自动保护后，需手动选择磁盘进行保护。</p> <p></p></li>
     <li><span>选择系统预置或用户自行创建的SLA。</span><p></p><p id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839223057_p33248794210">您也可以单击<span class="uicontrol" id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839223057_uicontrol744210206420">“<span id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839223057_text1873812341015">创建</span>”</span>，创建新的SLA。</p> <p></p></li>
     <li><span>选择代理主机。</span><p></p><p id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001839223057_p13689185885118">当用户未选择时，系统会从注册资源时配置的代理主机中选择1到多个代理主机执行备份。</p> <p></p></li>
     <li><span>单击<span class="uicontrol" id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001607841256_uicontrol471113581111_1">“确定”</span>。</span><p></p><p id="ZH-CN_TOPIC_0000001839223057__zh-cn_topic_0000001607841256_p25041111535_1">如果当前系统时间已晚于该SLA首次备份的开始时间，则关联备份SLA后可以选择在当前立即执行备份或者根据SLA中设置的备份策略等待下次调度。</p> <p></p></li>
    </ol>
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     <strong>父主题：</strong> <a href="zh-cn_topic_0000001839143113.html">步骤12：执行备份</a>
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